The Unhappy Mixture of Office 365, Outlook Web App, and Windows XP

On December 3, I blogged about some Outlook Web App (OWA) problems that users running Windows XP clients with IE8 had experienced. In a nutshell, browser was less than optimal. In fact, a sluggish snail was faster to paint pages than OWA could.

KB2871314 attributes the root cause to some JavaScript performance and memory usage issues in IE8. I guess it is very hard for a now-elderly browser to learn new tricks, especially the kind performed by the ever-willing-to-morph OWA interface as implemented in Exchange 2013. More modern browsers are happy to accommodate the demands of OWA but IE8 just fails to cope.

All of this won’t be a problem for you if you plan to phase out Windows XP clients before Microsoft’s April 8, 2014 deadline. Given the hype generated in some quarters, it’s entirely possible that PCs running Windows XP (including half of the ATMs in the developed world) will turn into pumpkins on that date. So it’s good if you will have gotten rid of those nasty Windows XP machines by then.

More realistically, because it’s hard to upgrade desktop systems (I imagine that there are few laptops running Windows XP today, if only because laptops tend to break more readily than their desktop counterparts), some Windows XP machines will cling stubbornly to life after April 8. Their users won’t get much joy if they expect to use OWA. Not only is Microsoft very unlikely to fix any of the performance and other issues that afflict IE8 in Exchange 2013 SP1 or any other future update, cloud users will find that their client experience is automatically degraded after April 8.

Related:Can I Use Microsoft Outlook as a Makeshift Helpdesk Ticketing System?

According to the Office 365 Client System Requirements:

More guidance comes as:

All of which means that on April 7 Windows XP users will be able to use OWA in all its premium, albeit slow, glory (above) and when they come to connect the next day, the client will automatically downgrade itself to the splendidly-named but much simpler OWA Light (below).

A world of difference exists between the two interfaces. One is bright, modern, and steadily improving as each update is made available for Exchange 2013. The other is stuck at least ten years back in a time when pads and smartphones didn’t exist and we were happy to interact with individual messages in a much more stilted manner.

The nature of life is that many people avoid reading the fine print for just about anything. The text quoted above shows that Microsoft is pretty clear in what they are telling Office 365 users will happen on April 8. I wonder just how well know this fact actually is and how many screams of horror will erupt on the Windows XP day of doom? Unless, of course, you install Chrome on your Windows XP clients…

With just nine weeks to go, you have been warned!